Practical Web Security
The vulnerabilities that actually show up in web applications, how they are exploited, and how to close them for good.
COURSE · SECURITY
Practical Web Security
12 LESSONS
YOUR INSTRUCTOR
Alina Costa
Alina runs the path from a developer laptop to production and everything that can go wrong along it — build pipelines, orchestration, secrets, and the attack surface all of it creates. She teaches operations and security together, on the grounds that a system nobody can deploy safely is not actually secure.
View instructorWhat you'll learn
Think in threat models
Reason about who your attacker is and what they can reach before writing defences.
Close the common holes
Understand and prevent injection, cross-site scripting, and request forgery.
Get authentication right
Sessions, password storage, and multi-factor done the way that survives review.
Harden the deployment
Headers, transport, secrets, and dependencies — the perimeter around your code.
Course content
4 MODULES · 12 LESSONS · 2H 0M TOTAL
MODULE 01 Thinking About Threats
Before any specific vulnerability: who is attacking, what they want, and what secure defaults look like.
3 LESSONS · 24M
MODULE 02 Common Web Vulnerabilities
The three classic classes, how each is exploited, and the defence that genuinely works.
3 LESSONS · 33M
Every lesson, searchable to the second.
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